Ileostomy Output Management

Defining Normal vs. High Output

High-output ileostomy is defined as >1200 ml/day, requiring medical management 1, 2, 3
Outputs of 1200-2000 ml/day typically require oral fluid restriction and glucose-saline solutions 1, 2

The primary aims are maintaining hydration/body weight and achieving a daily urine volume of at least 800 ml with sodium concentration >20 mmol/L 2, 3, 4
Daily stoma output volume and consistency should be monitored 1
Urine volume and sodium concentration should be monitored 2
Body weight and hydration status should be monitored 2
Serum electrolytes, particularly magnesium and potassium, should be monitored 1

Before implementing output reduction strategies, rule out intra-abdominal sepsis or partial bowel obstruction, enteritis, recurrent underlying disease, and medication-related causes 1, 5
Restrict hypotonic oral fluids to <500 ml/day and replace fluid requirements with glucose-saline solution containing ≥90 mmol/L sodium 1, 2, 3, 5
The American Gastroenterological Association recommends using a modified WHO cholera solution or an alternative solution for oral rehydration 1, 3, 4
For outputs 1200-2000 ml/day, patients can often maintain sodium balance with glucose-saline solutions or salt capsules 2, 3
Loperamide is the preferred first-line antimotility agent, given 30 minutes before meals 6, 5, 7
Codeine phosphate 60 mg four times daily can be added if loperamide alone is insufficient 6, 5
For outputs >2 liters/day or net secretory states, add gastric acid suppression with omeprazole, ranitidine, or cimetidine 6
Octreotide 50 mcg subcutaneously twice daily is reserved for refractory cases, particularly those with net secretory output >3 L/24 hours 7, 6

Jejunostomy outputs are typically higher and require more aggressive fluid/electrolyte management 1, 2
Patients with <50 cm remaining jejunum often require long-term parenteral support 6

Never encourage drinking large volumes of hypotonic fluids to quench thirst—this worsens sodium depletion 1, 2, 5
Avoid excessive IV fluid administration during rehydration, which causes edema due to elevated aldosterone 2, 3, 4
Don't overlook hypomagnesemia, which perpetuates hypokalemia and is resistant to potassium replacement alone 6, 1
Ensure medications are given 30 minutes before meals as output increases postprandially 6, 7